Floor



(No Model.)

' W. L. DOL'BEARE.

FLOOR.

No; 258,900. Patented, Tune 6, 1882. Y

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7721571, we .r.

UNITED. STATES PATENT OFFICE.

WILLIAM L. DOLBEARE, OF WEST NEWTON, MASSACHUSETTS.

FLOOR.

SPECIFICATION forming part of 7 Letters Patent No. 258,900, dated June 6, 1882,

Application filed Apri13,1882. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM L. DOLBEARE, of West Newton, of the countyof Middlesex and State of Massachusetts, have invented a new and useful Improvement in Floors; and

I dohereby declare the same to be described in the following specification and represented in the accompanying drawings, of which Figure 1 is a top view, and Fig. 2 a. trans.- verse section, of a floor constructed in accordance with my invention, the nature of which is defined in the'elaim hereinafter presented.

The object of my invention is the production of a floor that shall be water-proof.

In carrying out my invention I lay on, in the usual manner and next to the flooring-timbers O, a course of boards, B B, and upon such course I arrange and fasten down by nails another ofplanks, A, such being so that the joints between theboards B B of thefoundation-course shall be broken or lapped over, or covered by the planks 1}. Furthermore, the several planks I arrange at shdrt distances apartthat is to say, so thatr'each shall not touch at its edge or edges that or thoseimmediatel y next to it--.1nd I groove each plank near or rabbetit at the lower part of each edge of it, as shown at a. Into the spaces between the planks I pour fillings 1), consisting of a heated liquid composition of tar and pitch in or ahoutin equal proportions, or such as when the composition may become cool will cause it to be sufiieiently elastic or non-frangible. The composition used should possess the qualities of being elastic, adhesive, and waterproof-that is to say, it

I should be adhesive in order to cause it to firmly directlyunder it, and should be elastic to admit of it (as the planks may shrink or swell) yielding laterally without materially affecting its adhesion to them, and it should be waterproof in order to prevent water, when on the upper surface of the flooring, from passing down between the planks to their supportingboards, or getting between such boards and planks.

I am aware that the planks of a deck or side .of a ship are usually calked in their seams, oakum-and tar being used for such purpose. Suchplanks, however, have not been grooved or rabbeted for the purpose of keeping in place the calking.

I am also aware that pavement-blocks have been notched on their edges to receive cement run between them and the next adjacent blocks. 1 therefore make no claim to such,'my invention relating to floors only.

I claim A water-proof floor, substantially as described, composed of the foundation-timbers c, the covering-course of boards B, the superimposed course of grooved or rabbeted planks composition fillings 1), arranged and combined essentially as explained. 'i

. WILLIAM L. DOLBEARE.

Witnesses:

It. H. EDDY, E. B. PRATT.

adhere to the planks and the boards B, where A, and the elastic, adhesive, and water-proof 

